<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=windows-1252"> </head> <body text="#000000" bgcolor="#FFFFFF"> Work pretty well adding submorphs. Only requires little vector calculus to coop with the rotation center: <pre>ProtractorMorph>>initialize | label p1 font | super initialize . font _ FontFamily familyName: FontFamily defaultFamilyName pointSize: 4. 10 to: 170 by: 10 do: [:angle | p1 _ Point r: 88 degrees: angle negated. p1 _ p1 - (p1 normal * (font widthOfString: angle asString) / 2). label _ LabelMorph contents: angle asString font: font. label rotation: (90 - angle) degreesToRadians. self addMorph: label. label morphPosition: p1] </pre> All the the necessary knowledge do construct such morph is in The Cuis Book. What is interesting is how the width of the lines can be float number, here 1.0 ; 0.5 ; 0.6 <img moz-do-not-send="false" src="cid:part1.2FB30713.6ED27B17@drgeo.eu" alt="" width="429" height="297"> <div class="moz-cite-prefix">Le 13/01/2021 à 16:17, Juan Vuletich via Cuis-dev a écrit : </div> <blockquote type="cite" cite="mid:5FFF0F07.5000203@jvuletich.org">One way to do it is to add a submorph for each label, rotating it as needed. </blockquote> <pre class="moz-signature" cols="72">-- GNU Dr. Geo <a class="moz-txt-link-freetext" href="http://drgeo.eu">http://drgeo.eu</a> <a class="moz-txt-link-freetext" href="http://blog.drgeo.eu">http://blog.drgeo.eu</a></pre> </body> </html>